Molding device and production method of cable and submarine cable

Abstract

The invention provides a cable forming device, a production method and a submarine cable, and relates to the technical field of submarine cables, and the cable forming device comprises a wrapping assembly which is used for being arranged on a conveying path of a composite belt and a cable core main body, so as to guide the composite belt to wrap the cable core main body through the wrapping assembly; and the welding assembly is arranged at the rear end, along the conveying path of the composite belts, of the wrapping assembly, and the welding assembly is used for welding the overlapped parts of the composite belts. According to the cable forming device, the production method and the submarine cable provided by the invention, the problems that in the prior art, the production efficiency of the cable is low, and the part, correspondingly coated with the hot melt adhesive, of the composite belt layer is prone to being infirm in bonding are solved.

Description

Technical Field

[0001] The present application relates to the technical field of submarine cables, and in particular to a cable forming device, a production method, and a submarine cable. Background Art

[0002] The cable includes a cable core body and a composite tape layer wrapped around the cable core body, for example, a metal composite tape layer.

[0003] In related technologies, when setting up the composite tape layer, the composite tape is usually wrapped around the cable core body, and then hot melt adhesive is injected between the overlapping parts of the composite tape, so that the composite tape is fixed to the cable core body by hot melt adhesive bonding to form a composite tape layer.

[0004] However, after the composite tape layer is formed, it is necessary to wait for the hot melt adhesive to solidify before the cable can enter the subsequent process, resulting in low cable production efficiency, and the parts of the composite tape layer corresponding to the hot melt adhesive coated are prone to loose bonding problems. Summary of the Invention

[0005] The embodiments of the present application provide a cable forming device, a production method, and a submarine cable to solve the problem in the prior art that the cable production efficiency is low and the parts of the composite tape layer corresponding to the parts coated with hot melt adhesive are prone to loose bonding.

[0006] In a first aspect, an embodiment of the present application provides a cable forming device, comprising:

[0007] A wrapping assembly, the wrapping assembly being configured to be disposed on a conveying path of the composite tape and the cable core body, so as to guide the composite tape to be wrapped around the cable core body through the wrapping assembly;

[0008] A welding assembly is provided at the rear end of the wrapping assembly along the composite tape conveying path, and is used for welding overlapping portions of the composite tape.

[0009] In a possible embodiment, the welding assembly includes an ultrasonic welding head, and the ultrasonic welding head includes at least two interconnected welding parts, and the welding parts together enclose a welding channel;

[0010] The ultrasonic welding head is configured to weld overlapping portions of the composite tapes when the composite tape and the cable core body as a whole pass through the welding channel.

[0011] In a possible embodiment, a convex portion is provided on the inner surface of the weldment at a portion corresponding to the overlapped portion of the composite strips.

[0012] In a possible implementation manner, the welding assembly further includes:

[0013] First rack;

[0014] The mounting shell is movably arranged on the first frame, and the ultrasonic welding head is arranged on the mounting shell.

[0015] In one possible implementation, the packaging component includes:

[0016] Second rack;

[0017] a supporting panel, the supporting panel being movably arranged on the second frame;

[0018] A longitudinal wrapping mold is provided on the surface of the supporting panel and is located on the conveying path of the composite tape so as to guide the composite tape to be wrapped around the cable core body through the longitudinal wrapping mold.

[0019] In a possible embodiment, the longitudinal wrapping mold includes a guide hoop, a guide member, and a limit ring provided on the surface of the support panel, wherein the guide hoop, the guide member, and the limit ring are sequentially distributed along the conveying path of the composite strip;

[0020] The guide hoop is used to guide the composite tape to stably contact the guide member, and the guide member is used to guide the composite tape to wrap the cable core body and make the composite tape and the cable core body pass through the limiting ring.

[0021] An end of the limiting ring facing away from the supporting panel has an avoidance gap, so that the limiting ring is in an open ring shape.

[0022] In a possible embodiment, a wire-paying assembly is further included, and the wire-paying assembly includes:

[0023] a third frame, the third frame being used to support at least two composite strip rolls;

[0024] a pushing member, the pushing member being movably disposed on the third frame;

[0025] A cutting member, wherein the cutting member is movably arranged on the pushing member or the third frame, and the cutting member is configured to cut off a portion of the current composite tape located at the bonding position toward the side of the current composite tape roll after the pushing member pushes the composite tape on the current composite tape roll to adhere to the composite tape on the new composite tape roll.

[0026] In a possible embodiment, a tension adjustment component is further included, and the tension adjustment component includes:

[0027] The fourth rack;

[0028] a plurality of guide rollers, the guide rollers being rotatably disposed on the fourth frame and being used to guide the composite strip;

[0029] a first sensor, the first sensor being used to detect the unwinding tension of the composite tape;

[0030] A first control member is arranged on the fourth frame, the first control member is electrically connected to the first sensor, and the first control member is used to automatically control at least one of the guide rollers to slide in the direction perpendicular to the rotation axis or adjust the rotation speed of at least one guide roller according to the unwinding tension data fed back by the first sensor, so as to adjust the unwinding tension of the composite tape to a preset range.

[0031] In a possible embodiment, at least two second sensors are provided on the fourth frame, and the plurality of second sensors are distributed on two opposite sides of the composite belt in the axial direction of the guide roller;

[0032] A second control member is provided on the fourth frame, and the second control member is electrically connected to the second sensor. The second control member is configured to automatically control at least one of the guide rollers to swing when the second sensor detects that the composite belt deviates from the preset track, so as to adjust the composite belt to the preset track.

[0033] In a second aspect, an embodiment of the present application provides a method for producing a cable, using the cable forming device described in any of the above embodiments, comprising the following steps:

[0034] Paying out the composite tape and the cable core body, and passing the composite tape through a wrapping assembly in a forming device of the cable;

[0035] After the wrapping assembly guides the composite tape to wrap the cable core body, the composite tape and the cable core body are transported as a whole to the welding assembly in the cable forming device, and the overlapping parts of the composite tape are welded by the welding assembly.

[0036] In a third aspect, an embodiment of the present application provides a submarine cable, comprising a cable core body and a composite tape, wherein the composite tape is wrapped around the cable core body using the cable forming device described in any one of the above embodiments or the cable production method described above.

[0037] The present invention provides a cable forming device, production method and submarine cable, wherein the cable forming device includes: a wrapping assembly, which is arranged on the conveying path of the composite tape and the cable core body, so as to guide the composite tape to be wrapped around the cable core body through the wrapping assembly; and a welding assembly, which is arranged at the rear end of the wrapping assembly along the conveying path of the composite tape, and is used to weld the overlapping parts of the composite tape. Thus, during production, the composite tape and the cable core body are gradually unwound. Then, during the conveying process of the composite tape and the cable core body, the composite tape is first guided to be wrapped around the cable core body by the wrapping assembly, and then the overlapping parts of the composite tape are welded by the welding assembly, thereby fastening the composite tape to the cable core body to form a composite tape layer. Compared with the method of using hot melt adhesive bonding, there is no need to spend time waiting for the hot melt adhesive to cure, which greatly improves the production efficiency of the cable and reduces the possibility of the hot melt adhesive bonding being loose. This solves the problem of low cable production efficiency and the problem of loose bonding at the parts of the composite tape layer corresponding to the hot melt adhesive coating in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0039] Figure 1 A schematic diagram of the installation structure of a cable forming device provided in an embodiment of the present application;

[0040] Figure 2 for Figure 1 Schematic diagram of the structure of the ultrasonic welding head in the welding assembly;

[0041] Figure 3 for Figure 1 Schematic diagram of the installation structure of the mounting shell in the welding assembly;

[0042] Figure 4 for Figure 1 Schematic diagram of the structure of the package component;

[0043] Figure 5 for Figure 1 Schematic diagram of the structure of the center line assembly;

[0044] Figure 6 for Figure 1 Structural diagram of the fully automatic laser welding machine;

[0045] Figure 7 for Figure 1 Schematic diagram of the structure of the tension adjustment component;

[0046] Figure 8 A schematic structural diagram of a submarine cable provided in an embodiment of the present application.

[0047] Description of reference numerals:

[0048] 10-composite belt;

[0049] 20-cable core body; 21-water-blocking conductor; 22-conductor shielding layer; 23-cross-linked polyethylene insulation layer; 24-insulation shielding layer; 25-semiconducting water-blocking tape layer; 26-metal wire shielding layer; 27-metal tape wrapping layer; 28-semiconducting water-blocking tape layer;

[0050] 30-composite tape roll;

[0051] 40- non-metallic sheath;

[0052] 50-light unit;

[0053] 60-taping layer;

[0054] 70-filling unit;

[0055] 80-Inner cushion;

[0056] 90-armor layer;

[0057] 100-wrapping assembly; 110-second frame; 120-support panel; 130-longitudinal wrapping mold; 131-guide hoop; 132-guide member; 133-limiting ring;

[0058] 200 - welding assembly; 210 - ultrasonic welding head; 211 - welding piece; 212 - welding channel; 213 - horn; 214 - convex portion; 220 - first frame; 221 - top plate; 2211 - mounting slot; 222 - side plate; 2221 - waist-shaped hole; 230 - mounting housing; 231 - mounting cavity; 232 - suspension rod;

[0059] 300-pay-off assembly; 310-third frame; 320-pressing roller; 330-blade; 340-protective cover;

[0060] 400 - tension adjustment assembly; 410 - fourth frame; 420 - guide roller; 430 - first sensor; 440 - first control element; 450 - second sensor; 460 - deviation correction guide roller;

[0061] 500-support wheel;

[0062] 600-radian pressure wheel;

[0063] 700-trolley;

[0064] 800-Fully automatic laser welding machine; 810-Guide wheel assembly.

[0065] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0066] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0067] In related art, a cable includes a cable core and a composite tape layer, such as a metal composite tape layer, wrapped around the cable core. The composite tape layer is typically formed by wrapping a composite tape (such as an aluminum-plastic composite tape, a copper-plastic composite tape, a plastic composite tape, or other composite tape) around the cable core (e.g., longitudinally wrapping the composite tape around the cable core). Hot melt adhesive is then injected between the overlapping portions of the composite tape, thereby securing the composite tape to the cable core via hot melt adhesive bonding, thereby forming the composite tape layer.

[0068] However, after the composite tape layer is formed, the hot melt adhesive must be cured before the cable can proceed to the next process. This curing process significantly prolongs the cable production cycle and reduces cable production efficiency. Furthermore, the areas of the composite tape layer where the hot melt adhesive is applied are prone to poor adhesion.

[0069] Thus, the embodiment of the present application provides a cable forming device, a production method and a submarine cable, wherein the cable forming device includes: a wrapping assembly, which is used to be arranged on the conveying path of the composite tape and the cable core body, so as to guide the composite tape to be wrapped around the cable core body through the wrapping assembly; and a welding assembly, which is arranged at the rear end of the wrapping assembly along the conveying path of the composite tape, and is used to weld the overlapping parts of the composite tape. Thus, during production, the composite tape and the cable core body are gradually unwound. Then, during the conveying process of the composite tape and the cable core body, the composite tape is first guided to be wrapped around the cable core body by the wrapping assembly, and then the overlapping parts of the composite tape are welded by the welding assembly, thereby fastening the composite tape to the cable core body to form a composite tape layer. Compared with the method of using hot melt adhesive bonding, there is no need to spend time waiting for the hot melt adhesive to cure, which greatly improves the production efficiency of the cable and reduces the possibility of the hot melt adhesive bonding being loose. This solves the problem of low cable production efficiency and the problem of loose bonding at the parts of the composite tape layer corresponding to the hot melt adhesive coating in the prior art.

[0070] The following specific embodiments describe in detail the technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0071] like Figure 1 As shown, an embodiment of the present application provides a cable forming device, comprising:

[0072] The wrapping assembly 100 is used to be arranged on the conveying path of the composite tape 10 and the cable core body 20, so as to guide the composite tape 10 to be wrapped around the cable core body 20 through the wrapping assembly 100;

[0073] The welding assembly 200 is arranged at the rear end of the wrapping assembly 100 along the conveying path of the composite belt 10. The welding assembly 200 is used to weld the overlapping parts of the composite belt 10.

[0074] It should be noted that during implementation, the composite tape 10 and the cable core body 20 can be simultaneously unwound, and their conveying paths are consistent. The wrapping assembly 100 and the welding assembly 200 are sequentially arranged on the conveying path of the composite tape 10, so that the wrapping assembly 100 can guide the composite tape 10 to be wrapped around the cable core body 20, and the composite tape 10 is longitudinally wrapped on the cable core body 20, with the opposite edges of the composite tape 10 overlapping each other. Next, the composite tape 10 and the cable core body 20 are integrated into a whole, which passes through the welding assembly 200, and the overlapping portions of the composite tape 10 are welded by the welding assembly 200.

[0075] The composite belt 10 may be an aluminum-plastic composite belt, a copper-plastic composite belt, a plastic composite belt or other composite belts.

[0076] During production, in the process of conveying the composite tape 10 and the cable core body 20, the composite tape 10 is first guided to be wrapped around the cable core body 20 by the wrapping component 100, and then the overlapping parts of the composite tape 10 are welded together by the welding component 200, so as to fasten the composite tape 10 to the cable core body 20 to form a composite tape layer; compared with the hot melt adhesive bonding method, there is no need to spend time waiting for the hot melt adhesive to solidify, which greatly improves the production efficiency of the cable and reduces the possibility of weak hot melt adhesive bonding, thereby solving the problem of low cable production efficiency in the prior art and the problem that the parts of the composite tape layer corresponding to the hot melt adhesive coating are prone to weak bonding.

[0077] In some embodiments, as Figure 2 As shown, the welding assembly 200 includes an ultrasonic welding head 210, and the ultrasonic welding head 210 includes at least two interconnected welding parts 211, and each welding part 211 together encloses a welding channel 212;

[0078] The ultrasonic welding head 210 is configured to weld overlapping portions of the composite tape 10 when the composite tape 10 and the cable core body 20 as a whole pass through the welding channel 212 .

[0079] It should be noted that welding assembly 200 includes ultrasonic welding equipment (not shown) and ultrasonic welding head 210, which is connected to the ultrasonic welding equipment. During operation, welding assembly 200 utilizes the principle of high-frequency vibration. Under the action of high-frequency vibration, frictional heat is rapidly generated at the overlapping parts of composite tape 10 and at the contact parts between composite tape 10 and cable core body 20, promoting molecular diffusion and fusion, ultimately achieving a tight bond, greatly ensuring the security of the connection and meeting product quality requirements.

[0080] The ultrasonic welding head 210 includes two arc-shaped welding parts 211. These welding parts 211 can be made of a titanium alloy with high strength, high toughness, and good ultrasonic conductivity. The two welding parts 211 are connected to form a welding channel 212 between them. Alternatively, one, three, or any other number of welding parts 211 can be used.

[0081] Exemplarily, the two welding parts 211 can be configured to be detachably connected to each other or abut against each other to form a structure that can be opened and closed so as to adapt to composite tapes 10 and cable core bodies 20 of different diameters; the two welding parts 211 can also be connected by fasteners such as screws and bolts, without limitation.

[0082] One of the welded parts 211 is equipped with a horn 213, which connects the welded part 211 to the ultrasonic welding equipment via the horn 213. This allows the ultrasonic welding equipment to transmit signals or energy to the welded part 211 via the horn 213. In practice, the welded part 211 and the horn 213 can be tightly connected by screwing, effectively preventing frequency power attenuation. For example, the horn 213 is provided with external threads, and the welded part 211 is provided with screw grooves.

[0083] During production, after the composite tape 10 and the cable core body 20 form a whole and enter the welding channel 212, the welding piece 211 ultrasonically welds the overlapping parts of the composite tape 10, thereby fastening the composite tape 10 to the cable core body 20 to form a composite tape layer.

[0084] In some embodiments, a convex portion 214 is provided on the inner surface of the weldment 211 at a portion corresponding to the overlapped portion of the composite strips 10 .

[0085] In this embodiment, the convex portion 214 may include a plurality of circular protrusions, with a protrusion height between 0.1 mm and 0.3 mm and a spacing between each protrusion of 0.5 mm to 1 mm; the protrusions are rounded with a radius of 0.02 mm to 0.05 mm.

[0086] Thus, after the composite tape 10 and the cable core body 20 enter the welding channel 212, the overlapping portion of the composite tape 10 will correspond to the ridged portion 214, and the welding process of the composite tape 10 is completed. The provision of the ridged portion 214 not only increases the friction and energy transfer efficiency during welding, thus optimizing the welding effect, but also ensures that the composite tape 10 is not easily scratched when passing through the welding channel 212.

[0087] In other embodiments, the convex portion 214 may also be configured as protrusions of other shapes, such as stripes, or a combination of stripes and dots.

[0088] In some embodiments, the welding channel 212 can be divided into an entrance section and an exit section. The entrance section aperture D1 (mm) = r + 2h + (2-3), and the exit section aperture D2 (mm) = r + 2h ± 0.1, where r is the outer diameter of the cable core body 20, and h is the thickness of the composite tape 10. Furthermore, the entrance and exit sections are smoothly connected by a gradually changing curved surface. The exit section serves as a sizing section, and its length is set at 30-40 mm to ensure sufficient contact area during welding and achieve good welding results.

[0089] In some embodiments, as Figure 2 and Figure 3 As shown, the welding assembly 200 further includes:

[0090] First rack 220;

[0091] The mounting shell 230 is movably disposed on the first frame 220 , and the ultrasonic welding head 210 is disposed on the mounting shell 230 .

[0092] In this embodiment, the welding assembly 200 also includes a base frame. The first frame 220 includes an integrally formed top plate 221 and two side plates 222, giving the first frame 220 a U-shaped structure. The side plates 222 of the first frame 220 are mounted on the base frame. The side plates 222 are provided with a plurality of waist-shaped holes 2221. Screws or bolts are then used to secure the side plates 222 to the base frame through the waist-shaped holes 2221. Therefore, during implementation, the fixed position of the first frame 220 on the base frame can be adjusted as needed.

[0093] At the same time, a mounting groove 2211 is provided on the top plate 221, and a suspension rod 232 is connected to the top of the mounting housing 230. The suspension rod 232 is vertically inserted into the mounting groove 2211. A nut is threadedly connected to the suspension rod 232, and the nut abuts against the upper surface of the top plate 221. Of course, the nut can also be rotated to connect to the top plate 221. Therefore, the height of the suspension rod 232 can be adjusted by rotating the nut, thereby adjusting the height of the mounting housing 230.

[0094] The mounting shell 230 defines a mounting cavity 231 therein, and the ultrasonic welding head 210 is entirely accommodated in the mounting cavity 231 .

[0095] Therefore, the position of the ultrasonic welding head 210 can be adjusted by adjusting the positions of the first frame 220 and the mounting shell 230, thereby improving the adaptability during on-site use.

[0096] In other embodiments, a pneumatic cylinder, a hydraulic cylinder or an electric screw may be provided on the first frame 220 to rotate or move the position of the mounting housing 230 to achieve a movable connection of the mounting housing 230 on the first frame 220 .

[0097] In other embodiments, the welding assembly 200 may also be configured as a laser welding machine, a resistance welding machine, or a plasma welding machine.

[0098] In some embodiments, as Figure 4 As shown, the package assembly 100 includes:

[0099] Second rack 110;

[0100] A support panel 120 , wherein the support panel 120 is movably disposed on the second frame 110 ;

[0101] The longitudinal wrapping mold 130 is disposed on the surface of the supporting panel 120 and is located on the conveying path of the composite tape 10 so as to guide the composite tape 10 to be wrapped around the cable core body 20 through the longitudinal wrapping mold 130 .

[0102] In this embodiment, the support panel 120 is movably mounted on the second frame 110 via screw adjustment. For example, a plurality of first screws are rotatably mounted on the second frame 110. Sliders are threadedly connected to the first screws, which are rotatably mounted on the slides. The second screws are threadedly connected to the support panel 120, with the first and second screws being perpendicular to each other. Thus, the position of the support panel 120 can be adjusted by rotating the first or second screws.

[0103] In other embodiments, the position of the support panel 120 can be rotated or moved by a cylinder, a hydraulic cylinder or an electric push rod; of course, a vertically extending hydraulic cylinder or cylinder can also be set at the bottom of the second frame 110 to adjust the height of the second frame 110 and the support panel 120.

[0104] Based on this, the position of the longitudinal overmolding 130 can be adjusted by adjusting the height of the second frame 110 and the relative position between the support panel 120 and the second frame 110, thereby increasing adaptability during on-site use. Furthermore, the longitudinal overmolding 130 can be aligned with the welding channel 212, ensuring the stability of the composite tape 10 and the cable core body 20 during transport between the longitudinal overmolding 130 and the ultrasonic welding head 210.

[0105] Furthermore, the longitudinal wrapping mold 130 includes a guide hoop 131, a guide member 132, and a limiting ring 133 provided on the surface of the support panel 120. The guide hoop 131, the guide member 132, and the limiting ring 133 are sequentially distributed along the conveying path of the composite strip 10.

[0106] The guide hoop 131 is used to guide the composite tape 10 to stably contact the guide member 132. The guide member 132 is used to guide the composite tape 10 to wrap around the cable core body 20 and make the composite tape 10 and the cable core body 20 pass through the limiting ring 133.

[0107] An end of the limiting ring 133 facing away from the supporting panel 120 has an avoidance gap, so that the limiting ring 133 is in an open ring shape.

[0108] In this embodiment, the guide member 132 includes two guide rods set at an angle. The guide rods can be fixed to the upper surface of the support panel 120 by bonding, welding, screwing or other means, and the guide member 132 forms a closed end and an open end. During the conveying process, the composite belt 10 passes through the open section and the closed section in sequence.

[0109] At the same time, the guide hoop 131 can be fixed to the upper surface of the support panel 120 or to the guide member 132 by bonding, welding, screwing or other means, and the guide hoop 131 is correspondingly arranged at the open end of the guide member 132, and a feed port connected to the open end is formed between the guide hoop 131 and the support panel 120, and the shape of the feed port is adapted to the shape of the composite belt 10 in the unfolded state.

[0110] The retaining ring 133 can be fixed to the upper surface of the support panel 120 or to the guide member 132 by bonding, welding, screwing, or other means. The retaining ring 133 is correspondingly disposed at the closed end of the guide member 132. The end of the retaining ring 133 facing away from the support panel 120 has an escape notch, so that the retaining ring 133 has an open ring shape, for example, a U-shaped structure with the opening facing upward.

[0111] During production, the composite tape 10 can pass through the feed port to the guide member 132, and then the composite tape 10 and the cable core body 20 pass through the guide member 132 together. The guide member 132 will guide the composite tape 10 to reel and wrap the cable core body 20, and then the whole formed by the composite tape 10 and the cable core body 20 will enter the limiting ring 133 together, and then enter the ultrasonic welding head 210.

[0112] The guide hoop 131 effectively limits the position of the composite tape 10, allowing it to be accurately conveyed to the guide member 132, reducing the possibility of the composite tape 10 deviating while maintaining its smoothness. The limiting ring 133 ensures that after the composite tape 10 wraps around the cable core body 20, it can be conveyed more stably toward the ultrasonic welding head 210.

[0113] It should be noted that during implementation, the limiting ring 133 can be adjusted to keep it aligned with the welding channel 212 on the ultrasonic welding head 210, that is, the two are horizontally aligned. During implementation, the distance between the two can be set to 100 mm. This ensures that the composite tape 10 and the cable core body 20 can be formed as a whole and enter the welding channel 212 more stably.

[0114] For example, the diameter of the longitudinal overmold 130 (i.e., the diameter of the retaining ring 133) can be calculated as R (mm) = r + 2h + (3-4), where r is the outer diameter of the cable core 20 and h is the thickness of the composite tape 10. The overall length of the longitudinal overmold 130 can be set between 1200 and 1800 mm. The width of the feed port at the guide hoop 131 can be set to the width of the composite tape 10 + 20 mm.

[0115] In other embodiments, a guide groove may be further provided on the upper surface of the support panel 120 to form a guide member 132 .

[0116] In some embodiments, as Figure 5 As shown, the cable forming device further includes a pay-off assembly 300, which includes:

[0117] A third frame 310, the third frame 310 is used to support at least two composite strip rolls 30;

[0118] A pushing member, the pushing member is movably disposed on the third frame 310;

[0119] The cutting piece is movably arranged on the pushing piece or the third frame 310. The cutting piece is configured to cut off the portion of the current composite tape 10 located at the bonding position toward the side of the current composite tape roll 30 after the pushing piece pushes the composite tape 10 on the current composite tape roll 30 to adhere to the composite tape 10 on the new composite tape roll 30.

[0120] During implementation, mounting holes or slots can be provided on the third frame 310 to allow the composite tape roll 30 to be installed therein. This means that multiple composite tape rolls 30 can be mounted simultaneously on the third frame 310. Furthermore, the third frame 310 can support the composite tape rolls 30 for rotation, thereby allowing the composite tape 10 to be unwound. In other words, when rolls need to be replaced, both the old and new composite tape rolls 30 can be simultaneously located on the third frame 310.

[0121] The pushing member includes a pressure roller 320 and a cylinder (not shown) for controlling the movement of the pressure roller 320. The cylinder can also be replaced with an electric screw, hydraulic cylinder, or electric telescopic rod. The cylinder is mounted on the third frame 310, and the pressure roller 320 is mounted on the movable end of the cylinder. This allows the cylinder to control the movement of the pressure roller 320 toward or away from the new composite tape roll 30. It should be noted that when the old composite tape roll 30 is unwound, the composite tape 10 passes from the pressure roller 320 toward the new composite tape roll 30. This allows the pressure roller 320, under the action of the cylinder, to push the composite tape 10 toward the new composite tape roll 30, thereby bonding the existing composite tape 10 to the composite tape 10 on the new composite tape roll 30.

[0122] It is additionally noted that when the new composite tape roll 30 is in use, the head (ie, the starting end) of the composite tape 10 will have adhesive tape attached thereto, thereby facilitating the bonding of the new and old composite tapes 10 to each other.

[0123] In this embodiment, the cutting element includes a blade 330 and a cylinder (not shown) for controlling the sliding movement of the blade 330, both of which are mounted on the pressure roller 320. The cylinder can also be replaced with an electric screw, hydraulic cylinder, or electric telescopic rod. After the pressure roller 320 pushes the current composite tape 10 to adhere to the new composite tape 10, the cylinder in the cutting element controls the movement of the blade 330, severing the portion of the current composite tape 10 located at the bonding point toward the current composite tape roll 30. This completes the rapid roll change process, seamlessly connecting production links, avoiding process interruptions, and enabling high-speed operation to improve manufacturing efficiency. In other embodiments, the cutting element can also be mounted on the third frame 310.

[0124] During implementation, to ensure the stability of the pressure roller 320 during sliding, guide rails or grooves may be provided on the third frame 310 to guide the sliding of the pressure roller 320. Furthermore, triangular mounting holes may be provided on the third frame 310, with each composite tape roll 30 positioned within the mounting holes to facilitate interchangeability between old and new composite tape rolls 30. Furthermore, a protective cover 340 may be provided on the end of the pressure roller 320 facing the third frame 310. This protects the blade 330 when not in use, enhancing safety during operation.

[0125] At the same time, in some embodiments, Figure 1 and Figure 6As shown, a fully automatic laser welding machine 800 can also be installed on the conveying path of the composite tape 10, located behind the pay-off assembly 300. During production, the fully automatic laser welding machine 800 uses AI image recognition technology to quickly and accurately locate the pre-joining points and overlapping points between the new and old composite tapes 10, and then fully automatically cut them. The fully automatic laser welding machine 800 also has guide wheel assemblies 810 on both sides, allowing the guide wheel assemblies 810 to compress the composite tape 10 and weld the pre-joining points of the composite tape 10 through the fully automatic laser welding machine 800. After welding is completed, the guide wheel assemblies 810 automatically release and return to their initial position.

[0126] In addition, after clamping the composite belt 10, the guide wheel assemblies 810 at both ends can also be moved closer to each other so that the new and old composite belts 10 are brought closer to each other for welding.

[0127] In some embodiments, as Figure 7 As shown, the cable forming device further includes a tension adjustment component 400, which includes:

[0128] Fourth rack 410;

[0129] a plurality of guide rollers 420 rotatably disposed on the fourth frame 410 , the guide rollers 420 being used to guide the composite strip 10 ;

[0130] A first sensor 430 is used to detect the unwinding tension of the composite tape 10;

[0131] The first control member 440 is arranged on the fourth frame 410. The first control member 440 is electrically connected to the first sensor 430. The first control member 440 is used to automatically control at least one guide roller 420 to slide along the direction perpendicular to the rotation axis or adjust the rotation speed of at least one guide roller 420 according to the unwinding tension data fed back by the first sensor 430, so as to adjust the unwinding tension of the composite tape 10 to a preset range.

[0132] In this embodiment, the tension adjustment assembly 400 is positioned behind the fully automatic laser welding machine 800 along the conveying direction of the composite strip 10. The fourth frame 410 is a box-shaped structure, and each guide roller 420 is rotatably mounted within the fourth frame 410. During the pay-off process, the composite strip 10 passes through the fourth frame 410 and overlaps the guide rollers 420. Of course, the fourth frame 410 can also be configured in other shapes, which are not limited to this.

[0133] The first sensor 430 is configured as a tension sensor, and its model is not limited. In practice, the tension sensor can be installed on the guide roller 420 or on the fourth frame 410. The tension sensor can directly or indirectly contact the composite strip 10, and there is no limitation on this. It only requires that the tension sensor can detect the tension of the composite strip 10.

[0134] The first control member 440 can be a magnetic powder brake electrically connected to a tension sensor. The magnetic powder brake is correspondingly connected to one of the guide rollers 420 and can adjust the rotation speed of the guide roller 420 based on the payout tension data fed back by the tension sensor, thereby adjusting the payout tension of the composite tape 10 to within a preset range. In other embodiments, the first control member 440 can also be configured as a pneumatic cylinder, hydraulic cylinder, or electric lead screw capable of controlling the movement of the guide roller 420, thereby controlling one of the guide rollers 420 to slide in a direction perpendicular to the rotation axis, thereby achieving the purpose of adjusting the tension of the composite tape 10 and ensuring the stable payout process of the composite tape 10.

[0135] like Figure 7 As shown, at least two second sensors 450 are provided on the fourth frame 410 , and the plurality of second sensors 450 are distributed on two opposite sides of the composite strip 10 in the axial direction of the guide roller 420 ;

[0136] A second control component is provided on the fourth frame 410, and the second control component is electrically connected to the second sensor 450. The second control component is configured to automatically control at least one guide roller 420 to swing when the second sensor 450 detects that the composite belt 10 deviates from the preset track to adjust the composite belt 10 to the preset track.

[0137] The second sensor 450 is a deflection correction sensor, and its model is not limited. The second control element is disposed on the fourth frame 410 and connected to the guide roller 420, so that the guide roller 420 forms a deflection correction guide roller 460. The second control element can be a pneumatic cylinder, a hydraulic cylinder, or an electric screw electrically connected to the second sensor 450, so that the second control element can control the deflection correction guide roller 460 to swing along its own axis. Of course, it can also control the deflection correction guide roller 460 to rotate and swing, thereby adjusting the composite strip 10 to a predetermined track and ensuring the stable pay-off process of the composite strip 10.

[0138] During implementation, in order to further ensure the stability of the transportation of the composite tape 10 and the cable core body 20, a support wheel 500 can be added to the transportation path to control the height of the composite tape 10 and ensure the position accuracy of the composite tape 10 during the transportation process. An arc pressure wheel 600 is added to limit the transportation of the cable core body 20 to ensure that the cable core body 20 is accurately located directly above the composite tape 10, laying the foundation for the smooth implementation of the subsequent wrapping process. A rocking wheel 700 is added to the upper surface of the composite tape 10 and can float up and down freely. The tension of the composite tape 10 is further stably controlled by the up and down floating of the rocking wheel 700 to ensure that the tension of the composite tape 10 is always in the control state required by the method.

[0139] In summary, the cable forming device provided in the embodiment of the present application, during production, during the transportation of the composite tape 10 and the cable core body 20, first guides the composite tape 10 to be wrapped around the cable core body 20 through the wrapping component 100, and then welds the overlapping parts of the composite tape 10 through the welding component 200, thereby fastening the composite tape 10 to the cable core body 20 to form a composite tape layer; compared with the hot melt adhesive bonding method, there is no need to spend time waiting for the hot melt adhesive to solidify, which greatly improves the production efficiency of the cable and reduces the possibility of weak hot melt adhesive bonding, thereby solving the problem of low cable production efficiency in the prior art and the problem that the parts of the composite tape layer corresponding to the hot melt adhesive coating are prone to weak bonding.

[0140] An embodiment of the present application provides a method for producing a cable, using the cable forming device of any of the above embodiments, comprising the following steps:

[0141] Paying out the composite tape 10 and the cable core body 20, and passing the composite tape 10 through the wrapping assembly 100 in the cable forming device;

[0142] After the wrapping assembly 100 guides the composite tape 10 to wrap the cable core body 20, the composite tape 10 and the cable core body 20 are transported as a whole to the welding assembly 200 in the cable forming device, and the overlapping parts of the composite tape 10 are welded by the welding assembly 200.

[0143] Furthermore, after the welding process is completed, the composite tape 10 and the cable core body 20 can be fed into an extruder. The extruder uniformly extrude the PE sheath material, tightly surrounding and wrapping the composite tape 10 and the cable core body 20 to form a protective layer, thereby providing reliable insulation protection for the cable core body 20.

[0144] After the protective layer is applied, the product enters a water tank for segmented cooling. It should be noted that segmented cooling is crucial. Since the temperature of the newly extruded product is high, rapid cooling can easily lead to uneven internal stress distribution, resulting in quality issues such as deformation and cracking. Therefore, segmented cooling allows the product to gradually cool, evenly releasing internal stress, effectively ensuring stable product dimensions and performance, ultimately completing the entire production process smoothly.

[0145] An embodiment of the present application provides a submarine cable, comprising a cable core body 20 and a composite tape 10. The composite tape 10 is wrapped around the cable core body 20 using the cable forming device or the cable production method of any of the above embodiments.

[0146] In this embodiment, Figure 8 As shown, the submarine cable includes: multiple cable core bodies 20, each of which is wrapped, from the inside out, with a water-blocking conductor 21, a conductor shielding layer 22, a cross-linked polyethylene insulation layer 23, an insulation shielding layer 24, a semiconducting water-resistant tape layer 25, a metal wire shielding layer 26, a metal tape wrapping layer 27, and a semiconducting water-resistant tape layer 28. The submarine cable also includes a metal composite tape water-blocking layer formed by wrapping the cable core bodies 20 with a composite tape 10, and a non-metallic sheath 40 wrapped around the composite tape 10.

[0147] The composite tape 10 may be an aluminum-plastic composite tape, a copper-plastic composite tape, a plastic composite tape, or other composite tape, preferably an aluminum-plastic composite tape or a copper-plastic composite tape. The composite tape 10 is wrapped around the cable core 20 using the cable forming device or cable production method described in any of the aforementioned embodiments to form a metal composite tape water-blocking layer. The cable forming device or cable production method are described in detail in the aforementioned embodiments and are not further described here.

[0148] Therefore, when wrapping the composite tape 10 on the cable core body 20, compared with the traditional hot melt adhesive bonding method, there is no need to spend time waiting for the hot melt adhesive to solidify, which greatly improves the production efficiency of the cable and reduces the possibility of loose hot melt adhesive bonding.

[0149] like Figure 8 As shown, the submarine cable further includes an optical unit 50, a tape layer 60 wrapping each cable core body 20 and the optical unit 50, a filling unit 70 filled inside the tape layer 60, and an inner pad 80, an armor layer 90 and an outer layer wrapped around the outside of the tape layer 60 in sequence.

[0150] Specifically, the conductor shielding layer 22 is composed of a wrapped semi-conductive tape and an extruded semi-conductive shielding layer, or the semi-conductive layer can be directly extruded. A cross-linked polyethylene insulation layer 23 is extruded outside the conductor shielding layer 22. An insulating shielding layer 24 is extruded outside the cross-linked polyethylene insulation layer 23. A semi-conductive water-resistant tape layer 25 is wrapped outside the insulating shielding layer 24. A metal wire shielding layer 26 is sparsely wrapped on the semi-conductive water-resistant tape layer 25. Metal tape is used to wrap around the metal wire shielding layer 26 in reverse order to form a metal tape wrapping layer 27. A semi-conductive water-resistant tape layer 28 is wrapped around the metal tape wrapping layer 27. A composite tape 10 is longitudinally wrapped around the semi-conductive water-resistant tape layer 28 to form a metal composite tape water-blocking layer. A non-metallic sheath 40 is extruded outside the metal composite tape water-blocking layer. The structures and working methods of the other layers are similar to those of existing submarine cable structures and will not be described in detail here.

[0151] Finally, it should be noted that those skilled in the art will readily identify other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art not disclosed herein. The present invention is not limited to the precise structure described above and illustrated in the accompanying drawings, and various modifications and variations may be made without departing from the scope thereof. The scope of the present invention is limited solely by the appended claims.

Claims

1. A cable forming device, characterized in that: include: A wrapping assembly (100), the wrapping assembly (100) being arranged on a conveying path of the composite tape (10) and the cable core body (20), so as to guide the composite tape (10) to be wrapped around the cable core body (20) through the wrapping assembly (100); A welding assembly (200) is provided at the rear end of the wrapping assembly (100) along the conveying path of the composite belt (10), and the welding assembly (200) is used to weld overlapping portions of the composite belt (10).

2. The cable forming device according to claim 1, characterized in that: The welding assembly (200) comprises an ultrasonic welding head (210), wherein the ultrasonic welding head (210) comprises at least two interconnected welding parts (211), and each of the welding parts (211) jointly encloses a welding channel (212); The ultrasonic welding head (210) is configured to weld overlapping portions of the composite tape (10) when the composite tape (10) and the cable core body (20) as a whole penetrate into the welding channel (212).

3. The cable forming device according to claim 2, characterized in that: A convex portion (214) is provided on the inner surface of the welded part (211) at a portion corresponding to the overlapped portion of the composite strips (10).

4. The cable forming device according to claim 2, characterized in that: The welding assembly (200) further comprises: First rack (220); A mounting shell (230) is provided, wherein the mounting shell (230) is movably arranged on the first frame (220), and the ultrasonic welding head (210) is arranged on the mounting shell (230).

5. The cable forming device according to claim 1, characterized in that: The packaging assembly (100) comprises: Second rack (110); a supporting panel (120), the supporting panel (120) being movably arranged on the second frame (110); A longitudinal wrapping mold (130) is provided on the surface of the support panel (120), and the longitudinal wrapping mold (130) is located on a conveying path of the composite tape (10) so as to guide the composite tape (10) to be wrapped around the cable core body (20) through the longitudinal wrapping mold (130).

6. The cable forming device according to claim 5, characterized in that: The longitudinal wrapping mold (130) comprises a guide hoop (131), a guide member (132), and a limiting ring (133) arranged on the surface of the support panel (120), wherein the guide hoop (131), the guide member (132), and the limiting ring (133) are sequentially distributed along the conveying path of the composite belt (10); The guide hoop (131) is used to guide the composite tape (10) to stably contact the guide member (132), and the guide member (132) is used to guide the composite tape (10) to wrap the cable core body (20), and to allow the composite tape (10) and the cable core body (20) to form a whole passing through the limiting ring (133); One end of the limiting ring (133) facing away from the supporting panel (120) has an avoidance notch, so that the limiting ring (133) is in an open ring shape.

7. The cable forming device according to any one of claims 1 to 6, characterized in that: It also includes a wire-paying assembly (300), the wire-paying assembly (300) including: a third frame (310), the third frame (310) being used to support at least two composite strip rolls (30); a pushing member, the pushing member being movably arranged on the third frame (310); A cutting member is movably arranged on the pushing member or the third frame (310), and the cutting member is configured to cut off a portion of the current composite tape (10) located at the bonding position toward the side of the current composite tape roll (30) after the pushing member pushes the composite tape (10) on the current composite tape roll (30) to adhere to the composite tape (10) on the new composite tape roll (30).

8. The cable forming device according to any one of claims 1 to 6, characterized in that: It also includes a tension adjustment component (400), the tension adjustment component (400) including: 4th rack (410); a plurality of guide rollers (420), the guide rollers (420) being rotatably disposed on the fourth frame (410), the guide rollers (420) being used to guide the composite belt (10); A first sensor (430), the first sensor (430) is used to detect the unwinding tension of the composite tape (10); A first control member (440) is provided on the fourth frame (410), the first control member (440) is electrically connected to the first sensor (430), and the first control member (440) is used to automatically control at least one of the guide rollers (420) to slide in a direction perpendicular to the rotation axis or adjust the rotation speed of at least one of the guide rollers (420) based on the unwinding tension data fed back by the first sensor (430), so as to adjust the unwinding tension of the composite tape (10) to within a preset range.

9. The cable forming device according to claim 8, characterized in that: At least two second sensors (450) are provided on the fourth frame (410), and the plurality of second sensors (450) are distributed on two opposite sides of the composite belt (10) in the axial direction of the guide roller (420); A second control member is provided on the fourth frame (410), the second control member being electrically connected to the second sensor (450), and the second control member being configured to automatically control at least one of the guide rollers (420) to swing when the second sensor (450) detects that the composite belt (10) deviates from a preset track, so as to adjust the composite belt (10) to within the preset track.

10. A method for producing a cable, characterized in that: The cable forming device according to any one of claims 1 to 9 comprises the following steps: Paying out the composite tape (10) and the cable core body (20), and passing the composite tape (10) through a wrapping assembly (100) in a cable forming device; After the wrapping assembly (100) guides the composite tape (10) to wrap the cable core body (20), the composite tape (10) and the cable core body (20) are transported as a whole to a welding assembly (200) in a forming device of the cable, and the overlapping portions of the composite tape (10) are welded by the welding assembly (200).

11. A submarine cable, characterized in that: The cable core body (20) comprises a composite tape (10), wherein the composite tape (10) is wrapped around the cable core body (20) by using the cable forming device according to any one of claims 1 to 9 or the cable production method according to claim 10.

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